save project

diy2.py

+username = "python"
+userpassword = "123456"
+i = 10
+while True:
+    if i>0:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        i-=1
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        elif name != username:
+            print('用户名不存在，请重新输入')
+            print('你还有'+str(i)+'次机会')
+        else:  
+            print('密码错误，请重新输入')
+            print('你还有'+str(i)+'次机会')
+    else:
+        print('账号已锁定，请交钱解锁')
+        exit()
+print("欢迎来到贝尔编程!")
\ No newline at end of file